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| 1 | +using SkiaSharp; |
| 2 | +using SkiaSharp.Views.Maui; |
| 3 | + |
| 4 | +namespace CatClock |
| 5 | +{ |
| 6 | + public partial class MainPage : ContentPage |
| 7 | + { |
| 8 | + static readonly SKBitmap bitmap = |
| 9 | + BitmapExtensions.LoadBitmapResource(typeof(MainPage), "CatClock.Media.woodgrain.png"); |
| 10 | + |
| 11 | + SKPaint blackFillPaint = new SKPaint |
| 12 | + { |
| 13 | + Style = SKPaintStyle.Fill, |
| 14 | + Color = SKColors.Black |
| 15 | + }; |
| 16 | + |
| 17 | + SKPaint whiteStrokePaint = new SKPaint |
| 18 | + { |
| 19 | + Style = SKPaintStyle.Stroke, |
| 20 | + Color = SKColors.White, |
| 21 | + StrokeWidth = 2, |
| 22 | + StrokeCap = SKStrokeCap.Round, |
| 23 | + IsAntialias = true |
| 24 | + }; |
| 25 | + |
| 26 | + SKPaint whiteFillPaint = new SKPaint |
| 27 | + { |
| 28 | + Style = SKPaintStyle.Fill, |
| 29 | + Color = SKColors.White |
| 30 | + }; |
| 31 | + |
| 32 | + SKPaint greenFillPaint = new SKPaint |
| 33 | + { |
| 34 | + Style = SKPaintStyle.Fill, |
| 35 | + Color = SKColors.PaleGreen |
| 36 | + }; |
| 37 | + |
| 38 | + SKPaint blackStrokePaint = new SKPaint |
| 39 | + { |
| 40 | + Style = SKPaintStyle.Stroke, |
| 41 | + Color = SKColors.Black, |
| 42 | + StrokeWidth = 20, |
| 43 | + StrokeCap = SKStrokeCap.Round |
| 44 | + }; |
| 45 | + |
| 46 | + SKPaint grayFillPaint = new SKPaint |
| 47 | + { |
| 48 | + Style = SKPaintStyle.Fill, |
| 49 | + Color = SKColors.Gray |
| 50 | + }; |
| 51 | + |
| 52 | + SKPaint backgroundFillPaint = new SKPaint |
| 53 | + { |
| 54 | + Style = SKPaintStyle.Fill |
| 55 | + }; |
| 56 | + |
| 57 | + SKPath catEarPath = new SKPath(); |
| 58 | + SKPath catEyePath = new SKPath(); |
| 59 | + SKPath catPupilPath = new SKPath(); |
| 60 | + SKPath catTailPath = new SKPath(); |
| 61 | + |
| 62 | + SKPath hourHandPath = SKPath.ParseSvgPathData( |
| 63 | + "M 0 -60 C 0 -30 20 -30 5 -20 L 5 0 C 5 7.5 -5 7.5 -5 0 L -5 -20 C -20 -30 0 -30 0 -60"); |
| 64 | + SKPath minuteHandPath = SKPath.ParseSvgPathData( |
| 65 | + "M 0 -80 C 0 -75 0 -70 2.5 -60 L 2.5 0 C 2.5 5 -2.5 5 -2.5 0 L -2.5 -60 C 0 -70 0 -75 0 -80"); |
| 66 | + |
| 67 | + public MainPage() |
| 68 | + { |
| 69 | + InitializeComponent(); |
| 70 | + |
| 71 | + // Make cat ear path |
| 72 | + catEarPath.MoveTo(0, 0); |
| 73 | + catEarPath.LineTo(0, 75); |
| 74 | + catEarPath.LineTo(100, 75); |
| 75 | + catEarPath.Close(); |
| 76 | + |
| 77 | + // Make cat eye path |
| 78 | + catEyePath.MoveTo(0, 0); |
| 79 | + catEyePath.ArcTo(50, 50, 0, SKPathArcSize.Small, SKPathDirection.Clockwise, 50, 0); |
| 80 | + catEyePath.ArcTo(50, 50, 0, SKPathArcSize.Small, SKPathDirection.Clockwise, 0, 0); |
| 81 | + catEyePath.Close(); |
| 82 | + |
| 83 | + // Make eye pupil path |
| 84 | + catPupilPath.MoveTo(25, -5); |
| 85 | + catPupilPath.ArcTo(6, 6, 0, SKPathArcSize.Small, SKPathDirection.Clockwise, 25, 5); |
| 86 | + catPupilPath.ArcTo(6, 6, 0, SKPathArcSize.Small, SKPathDirection.Clockwise, 25, -5); |
| 87 | + catPupilPath.Close(); |
| 88 | + |
| 89 | + // Make cat tail path |
| 90 | + catTailPath.MoveTo(0, 0); |
| 91 | + catTailPath.CubicTo(50, 200, 0, 250, -50, 200); |
| 92 | + |
| 93 | + // Create shader |
| 94 | + using (SKShader shader = SKShader.CreateBitmap(bitmap, SKShaderTileMode.Mirror, SKShaderTileMode.Mirror)) |
| 95 | + { |
| 96 | + backgroundFillPaint.Shader = shader; |
| 97 | + } |
| 98 | + |
| 99 | + Dispatcher.StartTimer(TimeSpan.FromSeconds(1f / 60), () => |
| 100 | + { |
| 101 | + canvasView.InvalidateSurface(); |
| 102 | + return true; |
| 103 | + }); |
| 104 | + } |
| 105 | + |
| 106 | + private void OnCanvasViewPaintSurface(object sender, SKPaintSurfaceEventArgs e) |
| 107 | + { |
| 108 | + SKSurface surface = e.Surface; |
| 109 | + SKCanvas canvas = surface.Canvas; |
| 110 | + |
| 111 | + canvas.DrawPaint(backgroundFillPaint); |
| 112 | + |
| 113 | + int width = e.Info.Width; |
| 114 | + int height = e.Info.Height; |
| 115 | + |
| 116 | + // Set transforms |
| 117 | + canvas.Translate(width / 2, height / 2); |
| 118 | + canvas.Scale(Math.Min(width / 210f, height / 520f)); |
| 119 | + |
| 120 | + DateTime dateTime = DateTime.Now; |
| 121 | + |
| 122 | + // Head |
| 123 | + canvas.DrawCircle(0, -160, 75, blackFillPaint); |
| 124 | + |
| 125 | + // Ears and eyes |
| 126 | + for (int i = 0; i < 2; i++) |
| 127 | + { |
| 128 | + canvas.Save(); |
| 129 | + canvas.Scale(2 * i - 1, 1); |
| 130 | + |
| 131 | + canvas.Save(); |
| 132 | + canvas.Translate(-65, -255); |
| 133 | + canvas.DrawPath(catEarPath, blackFillPaint); |
| 134 | + canvas.Restore(); |
| 135 | + |
| 136 | + canvas.Save(); |
| 137 | + canvas.Translate(10, -170); |
| 138 | + canvas.DrawPath(catEyePath, greenFillPaint); |
| 139 | + canvas.DrawPath(catPupilPath, blackFillPaint); |
| 140 | + canvas.Restore(); |
| 141 | + |
| 142 | + // Whiskers |
| 143 | + canvas.DrawLine(10, -120, 100, -100, whiteStrokePaint); |
| 144 | + canvas.DrawLine(10, -125, 100, -120, whiteStrokePaint); |
| 145 | + canvas.DrawLine(10, -130, 100, -140, whiteStrokePaint); |
| 146 | + canvas.DrawLine(10, -135, 100, -160, whiteStrokePaint); |
| 147 | + |
| 148 | + canvas.Restore(); |
| 149 | + } |
| 150 | + |
| 151 | + // Move tail |
| 152 | + float t = (float)Math.Sin((dateTime.Second % 2 + dateTime.Millisecond / 1000.0) * Math.PI); |
| 153 | + catTailPath.Reset(); |
| 154 | + catTailPath.MoveTo(0, 100); |
| 155 | + SKPoint point1 = new SKPoint(-50 * t, 200); |
| 156 | + SKPoint point2 = new SKPoint(0, 250 - Math.Abs(50 * t)); |
| 157 | + SKPoint point3 = new SKPoint(50 * 5, 250 - Math.Abs(75 * t)); |
| 158 | + catTailPath.CubicTo(point1, point2, point3); |
| 159 | + canvas.DrawPath(catTailPath, blackStrokePaint); |
| 160 | + |
| 161 | + // Clock backgroud |
| 162 | + canvas.DrawCircle(0, 0, 100, blackFillPaint); |
| 163 | + |
| 164 | + // Hour and minute marks |
| 165 | + for (int angle = 0; angle < 360; angle +=6) |
| 166 | + { |
| 167 | + canvas.DrawCircle(0, -90, angle % 30 == 0 ? 4 : 2, whiteFillPaint); |
| 168 | + canvas.RotateDegrees(6); |
| 169 | + } |
| 170 | + |
| 171 | + // Hour hand |
| 172 | + canvas.Save(); |
| 173 | + canvas.RotateDegrees(30 * dateTime.Hour + dateTime.Minute / 2f); |
| 174 | + canvas.DrawPath(hourHandPath, grayFillPaint); |
| 175 | + canvas.DrawPath(hourHandPath, whiteStrokePaint); |
| 176 | + canvas.Restore(); |
| 177 | + |
| 178 | + // Minute hand |
| 179 | + canvas.Save(); |
| 180 | + canvas.RotateDegrees(6 * dateTime.Minute + dateTime.Second / 10f); |
| 181 | + canvas.DrawPath(minuteHandPath, grayFillPaint); |
| 182 | + canvas.DrawPath(minuteHandPath, whiteStrokePaint); |
| 183 | + canvas.Restore(); |
| 184 | + |
| 185 | + // Second hand |
| 186 | + canvas.Save(); |
| 187 | + float seconds = dateTime.Second + dateTime.Millisecond / 1000f; |
| 188 | + canvas.RotateDegrees(6 * seconds); |
| 189 | + whiteStrokePaint.StrokeWidth = 2; |
| 190 | + canvas.DrawLine(0, 10, 0, -80, whiteStrokePaint); |
| 191 | + canvas.Restore(); |
| 192 | + } |
| 193 | + } |
| 194 | +} |
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